SHOOT, SAVE, AND SHARE MORE 4K UHD THAN EVER BEFORE Get extreme speeds for fast transfer, app performance, and 4K UHD. Ideal for your Android™ smartphone, action cameras or drones, this high-performance microSD card does 4K UHD video recording, full HD video and high-resolution photos. The super-fast SanDisk Extreme microSDXC™ memory card reads up to 160MB/s and writes up to 90MB/s. Plus, it's A2-rated, so you can get fast application performance for an exceptional smartphone experience.Also Perfect for Your Action Camera and DronesSanDisk® cards are compatible with smartphones, tablets, action cameras and drones. Write Speeds of up to 90MB/s Capture fast-action photos or shoot 4K UHD video with write speeds of up to 90MB/s. The SanDisk Extreme® microSDXC™ UHS-I Card lets you shoot more and transfer even faster. Quick read speeds of up to 160MB/s save you time when transferring high-resolution images and 4K UHD videos. Great for Capturing 4K UHD Video Ideal for recording outdoor adventures, weekend trips, or sporting events without skipping frames. With up to 400GB, the SanDisk Extreme® microSD™ UHS-I card lets you capture uninterrupted 4K UHD and Full HD video with its UHS Speed Class 3 (U3) and Video Speed Class 30 (V30) ratings. LOAD APPS FASTER WITH A2 Get faster app performance for an outstanding smartphone experience thanks to the SanDisk Extreme® microSD card's A2 Specification.Durable Design for Use in Extreme EnvironmentsSanDisk Extreme® microSDHC™ and microSDXC™ UHS-I Cards are shockproof, temperature-proof, waterproof, and X-ray-proof, so you can enjoy your adventures without worrying about the durability of your memory card.Compatible with MobileMate® USB 3.0 readerThe MobileMate® USB 3.0 microSD™ card reader with transfer speeds of up to 160MB/s, you can move big files fast, move a lot of files fast or just make frequent file transfers that much quicker.